A few days ago I randomly found a better option for one of my component parts.
I’m swapping out the idea of using a cargo sling for a rock climbing nylon webbing sling. They’re rated at higher loads and are designed for holding people up after all.
Source for them is Amazon. I’ve gone for one at 30cm and one at 60cm – obviously the size needs to be right for what you’re attaching to. Hopefully I’ll get blue ones to match the rest of the bouncer, sadly don’t get to choose in this case.